Landia Superfund Site Green Remediation and Green Infrastructure

Landia Superfund Site: Green Remediation and Green Infrastructure Support Sustainable Development Douglas Reid-Green, BASF Corporation

Landia Chemical Company Site

Sustainable Remediation Model Environmental Economic Social

50 years of pesticide and fertilizer blending and formulation Pesticide and nitrate contamination in soil and groundwater Soil contamination prevented the business owner from expanding Abandoned property and buildings were the view for the community Ecology consisted of mowed weeds, compacted dirt and concrete

Cleanup Plan Agreed on in 2007 • Prevent direct contact with contaminants above health-based levels • Prevent migration of contaminants in soil into groundwater • Meeting goals required removing about 25, 000 CY of soil • In 2010, EPA asked that the removal be expanded into the water table

Key Site Condition was Identified in 2010 Most site infiltration was going through most contaminated soil!

Could the Plan be Optimized? • Could this: • Be changed to this:

Remedy was Optimized with EPA’s Help • Major pre-design soil investigation was used to define the excavation areas and volumes • Excavation into the water table where high concentrations were found • Drainage patterns changed to minimize on-site infiltration • Plantings designed to support wildlife and manage infiltration • A portion of the cap was designed to be impermeable to allow for business expansion • Currently – working with state, city and property owner on Restrictive Covenant to keep the property as-is

Optimizing the Soil Remediation Excavation to 5’ where high pesticide concentrations were encountered Excavation to 1’ – 2’ in locations where pesticide concentrations were lower Less soil removal than originally estimated, but more pesticide mass

Designing a Multi-Function Cover Habitat and phytoremediation cover Impermeable cap and space for business expansion Stormwater drainage to retention pond

Successful Cap and Maturing Cover

Supporting Wildlife

Improved Stormwater Management

The Wildlife Habitat Cover when Fully Grown Provides green space for local residence

Sustainable Redevelopment • Wildlife habitat created as part of the cleanup of a former pesticide manufacturing site: • Current business owner provided new space to expand operations • Community replaced an eyesore with green space • USEPA made big strides in the cleanup of an old site • RPs received innovative redevelopment award from EPA

Sustainable Remediation Environmental Benefits: Eliminate direct contact risk, manage source to groundwater, and provide wildlife ecology. Social Benefits: Provide green space for community. Economic Social Economic Benefits: Expansion of local business and Job creation

A Successful Project: Region 4 Excellence In Site Reuse Award

BASF’s Integrated Natural Corridor Cranston, RI Rensselaer, NY Wilmington, NC Landia, FL Miga, GA

Thank you!

For More Information, Contact Douglas Reid-Green BASF Corporation douglas. reid-green@basf. com Bill Denman EPA Region 4 denman. bill@epa. gov 20